TradeVerify Cangzhou Great PDC Bit Co.,ltd specializes in designing,manufacturing,marketing and serving the high performance diamond bits.The company is established by the top exports of the field, and equipped with advanced equipment and facilities. Our diamond bits named Great,which size ranging from 3" to 17-1/2".All the products have been awarded the ISO9001 certificated.Furthermore,the experienced and knowledgeable service team will ensure the superior performance of our products in both the domestic and international markets With our service pursuit"drilling requirement initially,customer satisfaction finally",we assure the product the best quality by adopting advanced design technology ,manufacturing process and strict quality control. Out company will always improve and innovate to satisfy different needs for all users in the entire world. You are always welcome to our company to visit on the spot.